4.3U Letterbomb homebrew error

Hello. It's nice to meet you. I tried 3 different SD cards and installed Letterbomb correctly. However, each time I try to install the homebrew channel, I get the black screen with Exception dsi occured error message. I entered my MAC address correctly. So, I have no idea what is going wrong. I ordered Indiana Jones to try that hack. I would hate to sell my Xenoblade if I can't get this to work. Thanks for your help!

Make sure you have removed all memory cards and things like that. Also do a full format of the SD card.

Thanks for the reply. I tried formatting the cards. I am now on the 4th different one, lol. No good on any of them. Indiana Jones should be here by Monday. So, it looks like I will just have to try that method.

make sure your format your sd card to fat32. Then make sure you go to letterbomb and chose right region and system menu. Download hackmii file to your computer and extract contents to your sd card. When complete go to message and start hackmii. Install homebrew first, then bootmii as boot 2 if can or bootmii as ios.Good luck.